OEM parts categories for 1984 Mercury Marquis 4 Cyl 2 3L 3At C3: Accelerator Linkage, Air Cleaner & Speed Control (Accessory Installation, Air Cleaner, Fuel Filler Door Speed Control Production Installation - Engine Compartment, Fuel Filler Door Speed Control Production Installation - Passenger Compartment) | Air Conditioner, Radios & Shock Absorbers (Ac Hoses & Tubes, Air Conditioner Compressor, Air Conditioner Control And Ducts, Air Conditioner Engine Compartment, Air Conditioner Evaporator, Heated Back Window, Heater - Controls & Ducts, Heater - Heater Parts, Heater - Hose Installation, Heater Hoses & Tubes, Radio - Monaural, Radio - Premium Sound, Radio - Stereo) | Alternator, Regulator, Battery, Starter & Distributor (Alternator Mounting Brackets, Distributor, Indicator Warning Panel, Instrument Cluster & Related Parts, Starter And Drive Assembly - Ford Positive Engagement) | Automatic Transmission (External Parts - Oil Cooling System, External Parts - Shift Mechanism, External Parts - Shift Mechanism - Floor Or Console, External Parts - Steering Column, External Parts - Steering Column - Floor Shift, External Parts - Steering Column And Shift Mechanism, External Parts - Steering Column Shift Mechanism, External Parts - Transmission Installation, External Parts - Transmission Shift Controls, External Parts - Transmission To Engine Brace, Internal Parts - Accumulator, Reverse And Overdrive Band And Servo, Internal Parts - Case, Converter Assy. And Related Parts, Internal Parts - Case, Converter Assy. Extension And Related Parts, Internal Parts - Case, Converter Assy., Extension Housing, Internal Parts - Case, Converter Assy., Extension, Housing & Related Parts, Internal Parts - Clutches, Gear, Shaft And Related Parts, Internal Parts - Clutches, Gear, Shaft, Rear Supports And Related Parts, Internal Parts - Clutches, Gear, Shaft, Rear Supports And Related Parts - Front, Reverse Servo And Related Parts, Internal Parts - Clutches, Gear, Shaft, Rear Supports And Related Parts - Main Control Valve Body, Internal Parts - Clutches, Gear, Shaft, Rear Supports And Related Parts - Manual Control Linkage And Related Parts, Internal Parts - Clutches, Gears, Shafts, Extension & Related Parts, Internal Parts - Clutches, Gears, Shafts, Extension And Related Parts - Governor, Low And Intermediate Servo And Related Parts, Internal Parts - Clutches, Gears, Shafts, Extension And Related Parts - Main Control Valve Body, Internal Parts - Clutches, Gears, Shafts, Extension And Related Parts - Manual Control Linkage And Parking Pawl, Internal Parts - Main Control Valve Body, Internal Parts - Manual Control Linkage And Parking Pawl, Internal Parts - Parking Pawl, Throttle And Manual Control Linkage, Internal Parts - Servo Band) | Body Front & Floor (Console - Floor Mounted, Console - W/Split Bench Seat, Consolette, Instrument Panel, Sun Visor, Vanity Mirror And Rear View Mirror) | Body Sides & Quarter (Body Sides & Quarter, Door Bumpers, Handles And Latch Parts - Front Door, Handles And Latch Parts - Rear Door, Lock Cylinder Assy. - Anti-Theft & Illuminated Entry, Window Parts - Front Door) | EM Exterior Moulding (Back Belt Side And Roof Drip Side, Window And Belt) | Engine (Camshaft And Related Parts, Crankcase Ventilation System, Crankshaft And Flywheel, Cylinder Block, Cylinder Block - External, Cylinder Block - Internal, Cylinder Block & Cylinder Block Plugs, Cylinder Block Cylinder Head, Valves, Rocker Arm And Related Parts, Engine Parts - External, Engine Parts - Internal - Lower, Engine Parts - Internal - Upper, Engine Supports, Engine Supports Oil Cooler, Engine Supports Oil Pump, Related Parts Oil Pump, Screen And Related Parts, Related Parts Piston, Crankshaft And Related Parts, Related Parts Valves And Rocker Arm Cover) | Fenders & Hood (Fender & Apron Sheet Metal, Hood) | Frame, Exhaust System, Spring & Stabilizer (Front Stabilizer, Front Suspension, Rear Suspension - Shock Absorbers And Springs) | Front Suspension & Steering (Front Suspension Arms, Shock Absorbers, Spindles, Springs And Stabilizer, Manual Steering System - Steering Gear Assembly, Manual Steering System - Steering Linkage, Steering Power Steering System, Steering Power Steering System - Pump Assy, Steering Power Steering System - Steering Column, Steering Power Steering System - Steering Linkage, Steering Power Steering System - Steering Wheel, Steering Power Steering System -Pump Installation, Steering Power Steering System -Steering Gear Assy) | Fuel System & Manifolds (Electronic Engine Control, Emission System - Exhaust Gas - Recirculation (E.G.R.), Fuel System, Liquid Propane Gas (Lpg) - Air Cleaner, Liquid Propane Gas (Lpg) - Carburetor And Fuel Filter, Liquid Propane Gas (Lpg) - Composite And Wiring System, Liquid Propane Gas (Lpg) - Cooling System, Liquid Propane Gas (Lpg) - Filler Pipe, Liquid Propane Gas (Lpg) - Fuel Tank, Liquid Propane Gas (Lpg) - Fuel Tank Straps, Liquid Propane Gas (Lpg) - Gas Converter, Manifold And Related Parts - Exhaust, Manifold And Related Parts Thermactor Emission) | IT Interior Trim Parts (Floor Insulators, Interior Trim Panels, Interior Trim Panels - R.H. Quarter Panel, Interior Trim Parts - Headlining & Garnish Moulding, Interior Trim Parts - Headlining And Garnish Moulding - Floor Carpets) | Lamps & Wiring (Electrical Systems - Electrical Wire Terminals, Electrical Systems - Fuse Panel And Related Parts, Electrical Systems - Wire Connection Sleeve Kits, Electrical Systems - Wiring System, Electrical Systems - Wiring System - Instrument Panel, Lamps Cargo, Lamps Dome Lamp, Lamps Dome/Map Lamp, Lamps Headlamp, Parking And Front Fender Side Marker, Lamps Illuminated Entry System - Cylinder Assembly, Lamps Illuminated Entry System - Wiring System And Related Parts, Lamps Illuminated Entry System Rear, Backup, License Plate And Body Side Marker) | Radiator & Grill (Cooling System, Cooling System Cond., Radiator Grille & Related Parts, Water Pump) | Rear Axle & Drive Shaft (Driveline Vibration Damper - Rear Axle Mounted, Driveshaft, Rear Axle - Ring Gear) | Roof, Back, Luggage Compartment & Tailgate (Fuel Filler Door, Latch Parts - Luggage Compartment, Liftgate, Window And Related Parts, Luggage Carrier - Roof Mounted, Roof Side Weatherstrips, Sliding Roof) | Seats (Child Safety Seat, Front Seat Parts - Bucket, Front Seat Parts - Full Width, Front Seat Parts - Split Bench, Rear Seat Parts, Rear Seat Parts - Folding, Seat Belt And Shoulder Harness Installation, Seat Belt And Shoulder Harness Installation - Bucket And Split Bench) | SM Body Sheet metal (Lower Body, Upper Body) | Speedometer, Bumpers, Mirrors & Wipers (Bumper - Front, Bumper - Rear, Jack And Spare Wheel Parts, Mirror - Inside, Mirror - Outside - Remote Control, Mirror - Vanity, Rear Window - Washer And Wiper, Speedometer Cable, Windshield - Wiper And Washer) | Wheels & Brakes (Brake And Clutch Pedals, Disc Brake System, Disc Brake System - Brake Assy. - Disc Front, Disc Brake System - Brake Assy. - Drum Rear, Disc Brake System - Brake Assy. - Drum Rear Brake Cylinder Assy. - Rear Drum, Parking Brake System, Wheels Hub Cap And Wheel Cover)